In:
Canadian Journal of Chemistry, Canadian Science Publishing, Vol. 68, No. 7 ( 1990-07-01), p. 1238-1250
Abstract:
1 H and 13 C NMR spectra have been recorded and the nuclear Overhauser enhancements (in D 2 O), after pre-irradiation of the anomeric protons, have been measured for tri- and tetrasaccharides containing 2,3-disubstituted residues of α-L-rhamnose and the corresponding disaccharides. The proximity of the conformational states of the disaccharide units in these branched oligosaccharides and in the corresponding disaccharides has been shown, on the basis of both the nOe experimental data and theoretical conformational analysis. This conclusion is also confirmed by data for glycosylation effects in the 13 C NMR spectra of the oligosaccharides. Keywords: branched oligosaccharides, 1 H and 13 C NMR spectra, conformations.
Type of Medium:
Online Resource
ISSN:
0008-4042
,
1480-3291
Language:
English
Publisher:
Canadian Science Publishing
Publication Date:
1990
detail.hit.zdb_id:
1482256-8
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